package com.byinsight.web.actions;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.filter.OncePerRequestFilter;

public class ForceNoCacheFilter extends OncePerRequestFilter {

	@Override
	protected void doFilterInternal(HttpServletRequest request,
			HttpServletResponse response, FilterChain filterChain)
			throws ServletException, IOException {
		response.setHeader("Cache-Control","no-cache");
        response.setHeader("Cache-Control","no-store");
        response.setHeader("Pragma","no-cache");
        response.setDateHeader ("Expires", -1);
        filterChain.doFilter(request, response);
	}

}
